/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.alipay.sofa.registry.server.session.node;

import java.util.Collection;
import java.util.concurrent.ConcurrentHashMap;

import com.alipay.sofa.registry.common.model.Node;
import com.alipay.sofa.registry.common.model.Node.NodeType;
import com.alipay.sofa.registry.common.model.metaserver.NodeChangeResult;

/**
 *
 * @author shangyu.wh
 * @version $Id: NodeManager.java, v 0.1 2017-11-28 11:56 shangyu.wh Exp $
 */
public interface NodeManager<T extends Node> {

    Collection<T> getDataCenterNodes();

    T getNode(String dataInfoId);

    NodeType getNodeType();

    void updateNodes(NodeChangeResult nodeChangeResult);

    Collection<String> getDataCenters();

    void renewNode();

    NodeChangeResult getAllDataCenterNodes();

    ConcurrentHashMap<String, Long> getDataCenterNodesVersions();
}